EN 617:2001

SLOVENSKI STANDARD
01-maj-2002
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Continuous handling equipment and systems - Safety and EMC requirements for the
equipment for the storage of bulk materials in silos, bunkers, bins and hoppers
Stetigförderer und Systeme - Sicherheits- und EMV-Anforderungen an Einrichtungen für
die Lagerung von Schüttgütern in Silos, Bunkern, Vorratsbehältern und Trichtern
Equipements et systemes de manutention continue - Prescriptions de sécurité et de
CEM pour les équipements de stockage des produits en vrac en silos, soutes, réservoirs
et trémies
Ta slovenski standard je istoveten z: EN 617:2001
ICS:
33.100.01
53.040.10
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 617
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2001
ICS 33.100.01; 53.040.10
English version
Continuous handling equipment and systems - Safety and EMC
requirements for the equipment for the storage of bulk materials
in silos, bunkers, bins and hoppers
Equipements et systèmes de manutention continue - Stetigförderer und Systeme - Sicherheits- und EMV-
Prescriptions de sécurité et de CEM pour les équipements Anforderungen an Einrichtungen für die Lagerung von
de stockage des produits en vrac en silos, soutes, Schüttgütern in Silos, Bunkern, Vorratsbehältern und
réservoirs et trémies Trichtern
This European Standard was approved by CEN on 4 June 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 617:2001 E
worldwide for CEN national Members.

Contents
page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references.6
3 Terms and definitions.8
4 Hazards.9
5 Safety and EMC requirements and/ or measures.10
5.1 Mechanical hazards .10
5.2 Electrical hazards.17
5.3 Electromagnetic compatibility (EMC).18
5.4 Thermal hazards .19
5.5 Hazards generated by radiation.20
5.6 Hazards generated by bulk materials handled and stored in the storage equipment .20
5.7 Hazards generated by neglected ergonomic principles in machine design (mismatch of machinery
with human characteristics and abilities) .21
5.8 Hazard combinations .21
5.9 Hazards caused by failure of energy supply, braking down of machinery parts and others functional
disorders .22
5.10 Hazards caused by (temporary) missing and/or incorrectly positioned safety related measures/means .23
6 Verification of safety and EMC requirements and /or measures .24
6.1 General .24
6.2 Special verification .27
7 Information for use .27
7.1 Operating instruction- Instruction handbook .27
7.2 Minimum marking.30
Annex A (normative) List of hazards according to EN 292-1.32
Annex B (informative) Further Documents and Remarks.36
Annex C (informative) Safety signs mentioned in 7.2.3.37
Annex D (informative) Fire or explosion hazard .38
Annex ZA (informative) Relationship of this document with EC Directives .40
Annex ZB (informative)  Clauses of this European Standard which address Principal Protection
Requirements of the EU Electro-magnetic compatibility Directive 89/336/EEC.42
Bibliography .43
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 148 "Continuous handling
equipment and systems - Safety", the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by January 2002, and conflicting national standards shall be withdrawn at the latest
by January 2002.
This European Standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative annexes ZA and ZB, which are integral parts of this standard.
Within the framework of its programme of work, CEN/TC 148 requested the working group 4 ”Safety requirements
for the storage of bulk materials in silos, bunkers, bins and hoppers " to prepare the following standard :

EN 617, Continuous handling equipment and systems - Safety and EMC requirements for the equipment for
the storage of bulk materials in silos, bunkers, bins and hoppers.
This draft standard forms part of a series of five draft standards the titles of which are given below :

EN 617, Continuous handling equipment and systems – Safety and EMC requirements for the equipment for
the storage of bulk materials in silos, bunkers, bins and hoppers.

prEN 618, Continuous handling equipment and systems - Safety and EMC requirements for equipment for
mechanical handling of bulk materials except fixed belt conveyors.

prEN 619, Continuous handling equipment and systems - Safety and EMC requirements for equipment for
mechanical handling of unit loads.

EN 620, Continuous handling equipment and systems - Safety and EMC requirements for fixed belt conveyors
for bulk material.

EN 741, Continuous handling equipment and systems - Safety requirements for systems and their components
for pneumatic handling of bulk materials.
Annex A is normative, the annexes B, C, D, ZA and ZB are informative.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.
Introduction
This European Standard is a type C standard as stated in EN 1070.
The machinery concerned and the extent to which hazards are covered are indicated in the scope of this standard.
While producing this standard it was assumed that :

only competent persons operate the system ;

components without specific requirements are :
a) designed in accordance with the usual engineering practice and calculation codes, including all failure
modes (see also Bibliography and annex B) ;
b) of sound mechanical and electrical construction ;
c) made of materials with adequate strength and of suitable quality ;
d) made of materials free of defects.

harmful materials, such as asbestos are not used as part of the machine ;

components are kept in good repair and working order, so that required characteristics remain despite wear ;

by design of the load bearing elements, a safe operation of the system is assured for loading ranging from
zero to 100 % of the rated possibilities and during the tests ;

to ensure the correct function of the equipment the ambient temperature is maintained between -5 C to + 50 C;
1)

negotiation occurred between the manufacturer and the user concerning particular conditions for the use and
places of use for the machinery related to health and safety ;

the place of installation allows a safe use of the machine.

1) “manufacturer” within the European Union is to be understood as intended in the Machinery Directive.
1 Scope
This European Standard deals with the technical requirements to minimise the hazards listed in clause 4 and
annex A. These hazards can arise during the operation and maintenance of equipment to store bulk materials in
silos, bunkers, bins and hoppers and their built-in inlet and outlet devices when carried out in accordance with the
specifications given by the manufacturer or his authorised representative. This standard deals with safety related
technical verification during commissioning.
The following parts are dealt with in this standard (see Figure 1) :
Key
A Bulk material to be stored
B Storage space limited by the silo structure
C Charging
D Discharging
E Associated and additional equipment (e.g. flow aid devices, instrumentation, local control systems)
F Working and traffic area
Figure 1 – Parts of a storage equipment
NOTE Silos are made of different materials e.g. concrete, steel, aluminium, spun rayon, wood.
Safety requirements and/or measures in this standard apply to equipment used in all environments. However,
additional risk assessment and safety measures need to be considered in severe conditions, e.g. low or high
temperatures out of the range covered by EN 60204-1, corrosive environments, strong magnetic fields, radioactive
conditions and bulk materials to be stored included their flow the nature of which could lead to a dangerous
situation.
This standard does not cover requirements for :

movable, non permanent storage equipment such as road vehicles, rail wagons, containers for bulk materials,
ships and barges ;

blow tanks and pressure vessels as used in pneumatic conveying systems ;

stockpiles and flat storage ;

storage equipment for non bulk materials (liquid, gas, slurries, sludge, silage) ;

dismantling and transport of storage equipments;

procedure for entering the silo and behaviour of persons inside the silo;

storage equipments for underground mining.
This European Standard deals with the technical requirements for electromagnetic compatibility (EMC).
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 131, Ladders - Terms, types, functional sizes.
EN 292-1, Safety of machinery - Basic concepts, general principles for design – Part 1: Basic terminology,
methodology.
EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design – Part 2: Technical principles
and specifications.
EN
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